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                            <div style="color:gray; word-break: break-all; font-size:12px;">原英文版地址: <a href="https://www.elastic.co/guide/en/elasticsearch/reference/7.7/breaking-changes-7.2.html" rel="nofollow" target="_blank">https://www.elastic.co/guide/en/elasticsearch/reference/7.7/breaking-changes-7.2.html</a>, 原文档版权归 www.elastic.co 所有<br/>本地英文版地址: <a href="../en/breaking-changes-7.2.html" rel="nofollow" target="_blank">../en/breaking-changes-7.2.html</a></div>
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<h2 class="title">
<a id="breaking-changes-7.2"></a>Breaking changes in 7.2<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/docs/reference/migration/migrate_7_2.asciidoc">edit</a>
</h2>
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<p>This section discusses the changes that you need to be aware of when migrating
your application to Elasticsearch 7.2.</p>
<p>See also <a class="xref" href="release-highlights.html" title="7.7版本的新特性"><em>7.7版本的新特性</em></a> and <a class="xref" href="es-release-notes.html" title="Release notes">Release notes</a>.</p>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
<a class="xref" href="breaking-changes-7.2.html#breaking_72_discovery_changes" title="Discovery changes">Discovery changes</a>
</li>
<li class="listitem">
<a class="xref" href="breaking-changes-7.2.html#breaking_72_ilm_deprecations" title="Index lifecycle management (ILM) deprecations">Index lifecycle management (ILM) deprecations</a>
</li>
<li class="listitem">
<a class="xref" href="breaking-changes-7.2.html#breaking_72_ingest_changes" title="Ingest pipeline changes">Ingest pipeline changes</a>
</li>
</ul>
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<h3>
<a id="breaking_72_discovery_changes"></a>Discovery changes<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/docs/reference/migration/migrate_7_2.asciidoc">edit</a>
</h3>
<h4>
<a id="_only_a_single_port_may_be_given_for_each_seed_host"></a>Only a single port may be given for each seed host.<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/docs/reference/migration/migrate_7_2.asciidoc">edit</a>
</h4>
<p>In earlier versions you could include a range of ports in entries in the
<code class="literal">discovery.seed_hosts</code> list, but Elasticsearch used only the first port in the range and
unexpectedly ignored the rest.  For instance if you set <code class="literal">discovery.seed_hosts:
"10.11.12.13:9300-9310"</code> then Elasticsearch would only use <code class="literal">10.11.12.13:9300</code> for
discovery. Seed host addresses containing port ranges are now rejected.</p>
<h3>
<a id="breaking_72_ilm_deprecations"></a>Index lifecycle management (ILM) deprecations<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/docs/reference/migration/migrate_7_2.asciidoc">edit</a>
</h3>
<h4>
<a id="deprecate-ilm-poll-interval-1s"></a>An ILM poll interval of less than one second is deprecated.<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/docs/reference/migration/migrate_7_2.asciidoc">edit</a>
</h4>
<p>Setting <code class="literal">indices.lifecycle.poll_interval</code> to less than one second (<code class="literal">1s</code>) is now
deprecated. If the <code class="literal">indices.lifecycle.poll_interval</code> cluster setting is too low,
it can cause excessive load on a cluster.</p>
<p>To avoid deprecation warnings, use a setting value of <code class="literal">1s</code> or greater.</p>
<h3>
<a id="breaking_72_ingest_changes"></a>Ingest pipeline changes<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/docs/reference/migration/migrate_7_2.asciidoc">edit</a>
</h3>
<h4>
<a id="deprecate-ecs-parameter"></a>The <code class="literal">user_agent</code> ingest processor’s <code class="literal">ecs</code> parameter is deprecated.<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/docs/reference/migration/migrate_7_2.asciidoc">edit</a>
</h4>
<p>The <code class="literal">ecs</code> parameter for the <code class="literal">user_agent</code> ingest processor is deprecated and will
be removed in 8.0. In 8.x, the <code class="literal">user_agent</code> ingest processor will only return
<a href="https://www.elastic.co/guide/en/ecs/1.4" class="ulink" target="_top">Elastic Common Schema (ECS)</a> fields.</p>
<p>To avoid deprecation warnings, remove the parameter from your ingest pipelines.</p>
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